From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0A7D6C433F5 for ; Mon, 17 Jan 2022 17:27:00 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4JczNf46D2z3gqD for ; Tue, 18 Jan 2022 04:26:58 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Egd6rZ0a; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=sashal@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Egd6rZ0a; dkim-atps=neutral Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4JcyvN1bwZz3dwZ for ; Tue, 18 Jan 2022 04:05:04 +1100 (AEDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8F796611F0; Mon, 17 Jan 2022 17:05:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C660C36AE7; Mon, 17 Jan 2022 17:05:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642439102; bh=KUsfQVHU2x96z/Fe4VrNN/7LI2bKQv8NRmV2m8PqQuE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Egd6rZ0atcDBEPCvu7+unrrpmB6TCHHW12+NGd86BAwjWOmP5EOAoLvcTrlUt+IiD u4qGB0pj/ADZbeKo4D8Zip2J+yucc68gk75oL7VGuDpvh4b24iGG5IYYZY4pzE1F1u Ow6ABzZAbHPJb00CCJFBGhblO4gJ6HISyOq07+XWPjBMyjRkQ5HCtZCmzXHtsDLEVa 1bFgQaetNz/ajjuBM9BGI3mJ8Wy6atD+zP5jK9dqN2807bD1LyKItSZ8XiyH7Pig76 5ieEmRBpgrBOBzG33wknSyKFaANr+4R49M029B2+b581YsdHaWnGUUZhONwfs+rxVL q80aMTkJtUd8g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 03/21] powerpc/powernv: add missing of_node_put Date: Mon, 17 Jan 2022 12:04:35 -0500 Message-Id: <20220117170454.1472347-3-sashal@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220117170454.1472347-1-sashal@kernel.org> References: <20220117170454.1472347-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , Julia Lawall , linuxppc-dev@lists.ozlabs.org, aneesh.kumar@linux.ibm.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Julia Lawall [ Upstream commit 7d405a939ca960162eb30c1475759cb2fdf38f8c ] for_each_compatible_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. A simplified version of the semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // @@ local idexpression n; expression e; @@ for_each_compatible_node(n,...) { ... ( of_node_put(n); | e = n | + of_node_put(n); ? break; ) ... } ... when != n // Signed-off-by: Julia Lawall Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1448051604-25256-4-git-send-email-Julia.Lawall@lip6.fr Signed-off-by: Sasha Levin --- arch/powerpc/platforms/powernv/opal-lpc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/powernv/opal-lpc.c b/arch/powerpc/platforms/powernv/opal-lpc.c index 608569082ba0b..123a0e799b7bd 100644 --- a/arch/powerpc/platforms/powernv/opal-lpc.c +++ b/arch/powerpc/platforms/powernv/opal-lpc.c @@ -396,6 +396,7 @@ void __init opal_lpc_init(void) if (!of_get_property(np, "primary", NULL)) continue; opal_lpc_chip_id = of_get_ibm_chip_id(np); + of_node_put(np); break; } if (opal_lpc_chip_id < 0) -- 2.34.1